Question

Mass of 2400 kg moving with a velocity of 20 metre per second square is stopped in 10 seconds and applying brakes calculate the retardation and editing force

Answer 1

Answer:

Retardation = 2 m/s^2

Retardation = 2 m/s^2Force applied by brakes = -4800 N

Explanation:

m = 2400 kg

u = 20 m/s

v = 0 m/s

t = 10 secs

v-u = at

so, a = v-u/t

= 0-20/10 m/s^2

= -2 m/s^2

Force F = m × a

= 2400 × -2 N

= -4800 N

Force is negative since it acts in opposite direction.